*{padding: 0px 0px 0px 0px;}
            #opacity{
                display: none;
                position: fixed;
                width: 100%;
                height: 100%;
                opacity: 0;
                background: #000;
                
            }
            #login{
                
                display: none;
                opacity: 1;
                background: #fff;
                border-radius: 5px;
                border-bottom: 3px solid #cacaca;
                border-left: 2px solid #cacaca;
                position: absolute;
                width: 318px;
                padding: 20px 20px 20px 20px;
                left: 500px;
                top: 0px;
            }
            #log-nav{
                border-radius: 2px;
                padding: 10px 55px 10px 55px;
                overflow: hidden;
                background: #cecece;
            }
            #log-ok{
                float: right;
            }
            
            #wrap{
                background: #f3f3f3;
                margin: auto;
                overflow: hidden;
            }
            #nav{
                width: 500px;
                margin: auto;
             
                overflow: hidden;
                
            }
            
            #header{
                position: relative;
                width: 498px;
                height: 30px;
                border: 1px solid #cacaca;
                border-radius: 4px;
                margin-bottom: 5px;
                margin-top: 3px;
            }
            
            #header span{
                line-height: 2.4em;
                color: red;
                font-size: 12px;
                font-weight: bold;
                font-family: arial;
            }
            
            #header #hello{
                display: none;
                position: absolute;
                left: 15px;    
            }
            
            #header #name{
                position: absolute;
                left: 100px;    
            }
            
            #hea-logout{
                display: block;
                position: absolute;
                left: 409px;
                
            }
            
            #hea-login{
                display: block;
                position: absolute;
                left: 342px;
                
            }
            #text{
                width: 468px;
                margin: auto;
                height: 100px;
                clear: both;
            }
            
            .clear{
                clear: both;
            }
            .space-top{
                margin-top: 10px;
            }
            
            #end-text{
                font-size: 12px;
                font-family: tahoma;
                color: red;
                font-weight: bold;
            }
            
            #send{
                float: right;
            }
            #input{
                background: #f3f3f3;
                overflow: hidden;
                padding: 10px 15px 10px 15px;
                border: 1px solid #cecece;
                border-radius: 4px;
            }
            #show{
                margin-top: 5px;
                padding: 10px 15px 10px 15px;
                background: #fff;
                overflow: hidden;
                border: 1px solid #cacaca;
                border-radius: 4px;
            }
            .avatar{
                width: 80px;
                height: 80px;
                background: #cecece;
                float: left;
                margin-right: 10px;
            }
            .time{
                font-size: 12px;
                font-family: arial;
                color: #2effbd;
            }
            
            .com{
                font-size: 12px;
                font-family: arial;
            }
            .show-chil{
                margin-top: 10px;
                overflow: hidden;
                height: 80px;
            }
            .show-chil span.name{
                font-weight: bold;
            }
            